Product Overview
The Piher T-21 Series is a 21mm carbon potentiometer designed for various control applications. It features a carbon resistive element and offers options for different shaft types (metal and plastic), bushing sizes, and terminal configurations. The T-21 series supports a wide range of values and tapers, including linear, logarithmic, and anti-logarithmic. Optional extras such as switches, detents, stereo matching, and custom assemblies with wires and connectors are available to enhance functionality. This series is suitable for applications requiring precise control and high mechanical endurance, with operating temperatures ranging from -25C to +70C. Piher products are subject to continuous process improvement, and specifications are subject to change without notice.
Product Attributes
- Brand: Piher
- Series: T-21
- Resistive Element: Carbon
- Certifications: ISO 14001
- Company Affiliation: Amphenol company
Technical Specifications
| Specification | Details |
|---|---|
| Nominal Power (50C) | 0.25 W (lin) / 0.12 W (no lin) |
| Max. Voltage | 250 VDC (lin) / 150 VDC (no lin) |
| Operating Temperature | -25C to +70C (-13F to +158F) |
| Standard Tolerance | 20% |
| Electrical Rotation Angle | 290 20 |
| Mechanical Rotation Angle | 310 5 |
| Stop Torque | > 80 Ncm. (> 112 in-oz) |
| Torque | 0.5 to 1.5 Ncm. (0.7 to 2.1 in-oz) |
| Residual Resistance | 30% (Log. & Alog. only Rn > 1K) |
| Tapers | Linear (A), Logarithmic (B), Anti-logarithmic (C) |
| Models | D, T, S, W, X, Y, Z, H, V, L, C |
| Shaft Types | Metal Shaft, Plastic Shaft (P10, P11, P12) |
| Bushing Diameter | 6, 6.35, 3/8" x 32 h., M10 x 0.75 |
| Terminals | Solder Lugs (S), Horizontal PCB (H), Vertical PCB (V) |
| Switch Options | F1 (Code F01), F2 (I-21 switch code) |
| Detents | Available (not with plastic shaft X, W, Y, Z) |
| Stereo Matching | Available in tandem models, upon request (3dB, 4dB, 6dB) |
| Nut & Washer | Optional (Loose, Assembled) |
| Special Length Shafts | Available for plain shafts (e.g., 6 L= 24.5 M06) |
| Value Tolerance | 10%, 20%, 30% |
| Mechanical Life | 1,000,000 cycles |
| Electrical Life | 500 h. at 50C, 0.25 W |
| Packaging | Boxes of 150/200 pieces |
| Switch F1 Rating | 2A; 250 VAC, Contact Resistance 25m, Dielectric Strength 2000V |
| Switch F2 Rating | 2A or 4A; 250 VAC, Contact Resistance 25m, Dielectric Strength 2000V |
I-21 Switch Specifications (Standalone)
| Specification | Details |
|---|---|
| Switch Types | Rotary Push, Push/Push, Push/Pull |
| Circuits | SPST, SPDT, DPST, DPDT |
| Current Rating | 2A or 4A |
| Voltage Rating | 250 VAC |
| Contact Resistance | 25 m |
| Dielectric Strength | 2000 V |
| Insulation Resistance | 100 M |
| Mechanical Life | 10,000 cycles |
| Operating Torque (Rotary) | 2 to 9 Ncm. (2.8 to 12.7oz/in) |
| Operating Force (Push/Push; Push/Pull) | 4 to 7 N (14 to 27oz) |
| Packaging | Boxes of 100 pieces |
2411201518_Amphenol-T21AH-M0607-102A2020-TA_C6273157.pdf
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